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          Institute: MPI für Festkörperforschung     Collection: FKF Publikationen 2004     Display Documents



  history
ID: 192888.0, MPI für Festkörperforschung / FKF Publikationen 2004
Mott Transition and Suppression of Orbital Fluctuations in Orthorhombic 3d1 Perovskites
Authors:Pavarini, E.; Biermann, S.; Poteryaev, A.; Lichtenstein, A. I.; Georges, A.; Andersen, O. K.
Language:English
Date of Publication (YYYY-MM-DD):2004
Title of Journal:Physical Review Letters
Volume:92
Issue / Number:17
Sequence Number of Article:176403
Review Status:not specified
Audience:Not Specified
Abstract / Description:Using t(2g) Wannier functions, a low-energy Hamiltonian is derived for
orthorhombic 3d(1) transition-metal oxides. Electronic correlations are
treated with a new implementation of dynamical mean-field theory for
noncubic systems. Good agreement with photoemission data is obtained.
The interplay of correlation effects and cation covalency (GdFeO3-type
distortions) is found to suppress orbital fluctuations in LaTiO3 and
even more in YTiO3, and to favor the transition to the insulating state.
External Publication Status:published
Document Type:Article
Communicated by:Michaela Asen-Palmer
Affiliations:MPI für Festkörperforschung
External Affiliations:Univ Pavia, INFM, I-27100 Pavia, Italy.
; Univ Pavia, Dipartimento Fis A Volta, I-27100 Pavia, Italy.
; Ecole Polytech, Ctr Phys Theor, F-91128 Palaiseau, France.
; Univ Nijmegen, NSRIM, NL-6525 ED Nijmegen, Netherlands.
; Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany.
Identifiers:ISI:000221179200045 [ID No:1]
ISSN:0031-9007 [ID No:2]
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